That's a rhetorical approximation
Jin-Gitaxias is a living storehouse of research data, collated from every tidbit of vicious exploration conducted throughout the plane
On top of that, you can add a bit of mana to your pool by revealing specific cards off the top of your library during your precombat main phase
On both 1st Edition and Shadowless cards, this reads: 1995, 96, 98, 99 Nintendo, Creatures, GAMEFREAK
River Kelpie Primarily a payoff for mechanics like persist or undying, River Kelpie provides card advantage whenever permanents enter the battlefield from the graveyard
The History of Craft in MTG Craft debuted in 2023 in The Lost Caverns of Ixalan , and is currently exclusive to that set and the associated Lost Caverns of Ixalan Commander precon decks